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https://issues.apache.org/jira/browse/XMLBEANS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cezar Andrei resolved XMLBEANS-384.
-----------------------------------
Resolution: Won't Fix
Pretty print option works by introducing spaces, if in your application the
spaces might have semantics do not use pretty print option (or toString() which
implies pretty print).
> Using the pretty print option results in invalid XML if processing
> instructions are embedded in enumerated elements
> -------------------------------------------------------------------------------------------------------------------
>
> Key: XMLBEANS-384
> URL: https://issues.apache.org/jira/browse/XMLBEANS-384
> Project: XMLBeans
> Issue Type: Bug
> Affects Versions: Version 2.4
> Reporter: Scott Roeske
> Priority: Minor
>
> If an element contains a processing instruction, it is separated into
> multiple lines when using the pretty print option.
> For example:
> <elem><?proc_instr?>text</elem>
> Becomes:
> <elem>
> <?proc_instr?>
> text
> </elem>
> This causes problems if the element is an enumerated type since the extra
> whitespace results in invalid XML. If the output is subsequently parsed,
> then the following exception is raised when trying to validate the document
> or trying to access the value:
> org.apache.xmlbeans.impl.values.XmlValueOutOfRangeException: string value
> '
>
> text
> ' is not a valid enumeration value for type of elem element in type of
> element doc
> In this case, the newlines that have been introduced have resulted in a value
> that does not match any of the valid enumerated types.
> The workaround is to use the "strip whitespace" option when parsing the
> output, which collapses the value back to a single line and results in valid
> XML again. However, this workaround may not always be possible or desirable,
> and it would be preferable if the pretty print output could result in valid
> XML from the outset.
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